The G value for formation of gaseous water at 298 K and 1 atm is -278 kJ/mol. What is the nature of the spontaneity of formation of gaseous water at these conditions?

A. The reaction may or may not be spontaneous.
B. The reaction is sometimes spontaneous.
C. The reaction is never spontaneous.
D. The reaction is spontaneous.

Question

The G value for formation of gaseous water at 298 K and 1 atm is -278 kJ/mol. What is the nature of the spontaneity of formation of gaseous water at these conditions?

 		A.	The reaction may or may not be spontaneous.
 		B.	The reaction is sometimes spontaneous.
 		C.	The reaction is never spontaneous.
 		D.	The reaction is spontaneous.

vera_ewing · Answer

@JFraser help!

vera_ewing · Answer

@diamondboy

jfraser · Answer

the sign of $\Delta G$ is negative, that should tell you everything

vera_ewing · Answer

C?

diamondboy · Answer

nope

vera_ewing · Answer

D?

diamondboy · Answer

I would let JFraser to explain to u instead of delivering d answer

vera_ewing · Answer

@JFraser It's D right? since it's negative...

jfraser · Answer

the thermodynamic functions like $\Delta G$, $\Delta H$, and $\Delta S$ are always found the same kind of way

diamondboy · Answer

Change in G represents d free energy

vera_ewing · Answer

Ok good so then it must be D. Thanks so much! @diamondboy @JFraser :)

diamondboy · Answer

yep u got it